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Physics

Physics
The unit of noise pollution (level) is :

None of these
Decibel
Ppm
Decimal

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Physics
Which resource is both renewable and inexpensive?

Sunlight
Gold
Minerals
Coal

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Physics
The characteristic invalid for heat radiation is that it travels :

With the speed of light
In a straight line
In all directions
Heating the medium through which it passes

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Physics
The cover of a solar cooker is made of glass because

It absorbs sun's rays
It reflects sun's rays
It retains the heat inside by the green house effect
It rediates heat better than metals

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Physics
A fresh egg when placed in salt water will

Float
Burst
Sink but will not go to the bottom
Sink and go to the bottom

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Physics
Which of the following supports particle nature of photons ?

Polarization
Interference
Photoelectric effect
Diffraction

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MORE MCQ ON Physics

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